Thiaminase[thī-am′i-nās]

Type:Term

Definitions
1. An enzyme present in raw fish that destroys thiamin and may produce thiamin deficiency in animals on a diet largely composed of raw fish.
2. A hydrolase cleaving thiamin into a pyrimidine moiety (2-methyl-4-amino-5-hydroxymethylpyrimidine) and a thiazole moiety (4-methyl-5-(2′-hydroxyethyl)thiazole); the pyrimidine moiety may appear in the urine as pyramin.

Synonyms
thiaminase II

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